The crystal structures of 1-(2-halo-6-fluorophenylmethyl)-1-methylimidazolium bromide salts and 1-(2-trifluoromethyl-6-fluorophenylmethyl)-1-methylimidazolium bromide [MeNC₃H₃NCH₂C₆H₃X-2-F-6]⁺·Br⁻ [X = F (1), Cl (2), Br (3), I (4), CF₃ (5)] have been determined. The crystal structure of the hydrate of salt 1 contains π–π stacked imidazolium⋯difluorophenyl⋯difluorophenyl⋯imidazolium units. Those of salts 2, 4 and 5 possess bromide⋯halofluorophenyl⋯halofluorophenyl⋯bromide motifs comprising anion–π and π–π stacking interactions. That of salt 4 also contains bromide⋯iodide halogen bonding. The crystal structure of the sesquihydrate of salt 3 possesses bromine⋯halofluorophenyl⋯halofluorophenyl⋯bromine motifs.

1-（2-卤代-6-氟代苯基甲基）-1-甲基咪唑鎓溴化物盐和1-（2-三氟甲基-6-氟代苯基甲基）-1-甲基咪唑鎓溴化物[MeNC ₃ H ₃ NCH ₂ C ₆ H ₃ X -2-F-6] ⁺ ·溴^- [X = F（1），CL（2），溴（3），I（4），CF ₃（5）]已被确定。盐1的水合物的晶体结构包含π-π堆叠的咪唑⋯二氟苯基⋯二氟苯基⋯咪唑单元。那些盐的2，4和5具有由阴离子-π和π-π堆积相互作用构成的溴化物-卤代氟苯基-卤代氟苯基-溴化物基序。盐4的盐还包含溴化碘化物卤素键。盐3的倍半水合物的晶体结构具有溴⋯卤氟苯基⋯卤氟苯基⋯溴基序。